<template>
  <div class="login_container">
    登录组件
    <div class="loginbox">
      <!-- 头像区域 -->
      <div class="avatar_box">
        <img src="../assets/logo.png" alt />
      </div>
      <!-- 表单区域 -->
      <el-form
        ref="loginFormRef"
        :model="loginForm"
        label-width="0px"
        class="login_form"
        :rules="loginFormRules"
      >
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input prefix-icon="el-icon-user-solid" v-model="loginForm.username"></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input type="password" prefix-icon="el-icon-eleme" v-model="loginForm.password"></el-input>
        </el-form-item>
        <!-- 按钮 -->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginRef">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 表单基本信息
      loginForm: {
        username: "Admin",
        password: "123456",
      },
      // 表单验证规则
      loginFormRules: {
        username: [
          // require指的是必填项
          // message 表示提示信息
          // trigger表示触发条件
          { required: true, message: "请输入注册名称", trigger: "blur" },
          {
            min: 3,
            max: 14,
            message: "长度在 3 到 14 个字符",
            trigger: "blur",
          },
        ],
        password: [
          { required: true, message: "请输入用户密码", trigger: "blur" },
          {
            min: 3,
            max: 14,
            message: "长度在 3 到 14 个字符",
            trigger: "blur",
          },
        ],
      },
    }
  },
  methods: {
    resetLoginRef() {
      // console.log(this);
      // console.log(this.$refs);
      // console.log(this.$refs.loginFormRef);
      // loginFormRef就是表单对象
      this.$refs.loginFormRef.resetFields()
    },
    login() {
      // 表单预验证
      this.$refs.loginFormRef.validate(async (valid) => {
        // console.log(valid);
        if (!valid) return
        // 结构方法
        const { data: res } = await this.$http.post("login", this.loginForm)
        //    console.log(res);
        if (res.meta.status !== 200) {
          return this.$message.error("你也太傻逼了吧！")
        } else {
          this.$message.success("成功啦！")
          //    token方式
          console.log(res.data.token)
          window.sessionStorage.setItem("token", res.data.token)
          //    编程式导航
          this.$router.push("/home")
        }
      })
    },
  },
}
</script>

<style lang="less" scoped>
// scoped表示只在该组件产生效果
.login_container {
  background-color: #2b4b6b;
  height: 100%;
}
.loginbox {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);

  .avatar_box {
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    background-color: #fff;
    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }
}
.btns {
  display: flex;
  justify-content: flex-end;
}
.login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  // 这一步非常关键
  box-sizing: border-box;
}
</style>